Decomposition by ionizing radiations of p-chlorophenol and tetrachloroethylene in synthetic water samples at about 2 mg Cl L-1, has been studied in laboratory-scale experiments. Bicarbonate/carbonate and nitrate ions, at two concentration levels (20 and 200 mg HCO3- L-1 and 1 and 50 mg NO3- L-1) were added to synthetic samples in order to evaluate their influence on decomposition yield. At 5 kGy γ dose level, a quantitative degradation of p-chlorophenol is obtained whereas only qualitative consideration can be drawn on tetrachloroethylene. Comparative study with respect to degradation of p-cholophenol solutions (about 2 mg Cl L-1) by γ-rays and electron beam irradiation treatment at 0.5 kGy dose level, are in progress; preliminary results indicate that irradiation with γ-rays seems to be more efficient in terms of removal efficiency respect to electron beams source.
Bettoli, M.G., Ravanelli, M., Tositti, L., Tubertini, O., Guzzi, L., Martinotti, W., et al. (1998). Radiation induced decomposition of halogenated organic compounds in water. RADIATION PHYSICS AND CHEMISTRY, 52(1-6), 327-331 [10.1016/S0969-806X(98)00027-9].
Radiation induced decomposition of halogenated organic compounds in water
Bettoli M. G.;Tositti Laura;Tubertini O.;
1998
Abstract
Decomposition by ionizing radiations of p-chlorophenol and tetrachloroethylene in synthetic water samples at about 2 mg Cl L-1, has been studied in laboratory-scale experiments. Bicarbonate/carbonate and nitrate ions, at two concentration levels (20 and 200 mg HCO3- L-1 and 1 and 50 mg NO3- L-1) were added to synthetic samples in order to evaluate their influence on decomposition yield. At 5 kGy γ dose level, a quantitative degradation of p-chlorophenol is obtained whereas only qualitative consideration can be drawn on tetrachloroethylene. Comparative study with respect to degradation of p-cholophenol solutions (about 2 mg Cl L-1) by γ-rays and electron beam irradiation treatment at 0.5 kGy dose level, are in progress; preliminary results indicate that irradiation with γ-rays seems to be more efficient in terms of removal efficiency respect to electron beams source.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
